GedSite has excellent support for GEDCOM and the import process creates a detailed log file.
GedSite's GEDCOM import component includes a set of rules that customize the process based on the which application wrote the GEDCOM file. GedSite uses a generic set of rules when it does not recognize the GEDCOM file's source. For this assessment, GedSite used its generic rules.
Gedcom Publisher is an electronic book (EPUB) creator also published by Family History Hosting, LLC. It uses the same GEDCOM import component as GedSite. The assessment below for GedSite will also apply to Gedcom Publisher.